private Image <Bgra, byte> AddImages(Image <Bgra, byte>[] imageArray)
{
if (imageArray == null || imageArray.Length == 0)
{
throw new Exception("wtf parameters are empty bro");
}
int _height = imageArray[0].Height;
int _width = imageArray[0].Width;
foreach (Image <Bgra, byte> i in imageArray)
{
if (i.Height != _height || i.Width != _width)
{
throw new Exception("Array of images are not of the same dimensions");
}
}
//data cleaned
Image <Bgra, byte> output = EngineTools.CreateTransparent(_width, _height);
for (int x = 0; x < _width; x++)
{
for (int y = 0; y < _height; y++)
{
Bgra pixeldata = new Bgra(0, 0, 0, 0);
List <double> alphaArray = new List <double>();
for (int i = 0; i < imageArray.Length; i++) //check to see if layers have anything on them at all, skip math if there is
{
alphaArray.Add(imageArray[i][y, x].Alpha);
}
if (alphaArray.Sum() <= 0.001)
{
goto SkipSum;
}
for (int i = 0; i < imageArray.Length; i++)
{
if (imageArray[i][y, x].Alpha > 0.001)
{
double a1 = imageArray[i][y, x].Alpha / 255;
double r1 = imageArray[i][y, x].Red;
double g1 = imageArray[i][y, x].Green;
double b1 = imageArray[i][y, x].Blue;
double a2 = pixeldata.Alpha / 255;
double r2 = pixeldata.Red;
double g2 = pixeldata.Green;
double b2 = pixeldata.Blue; //stacking value 2 over value 1
//additive compositing
pixeldata.Alpha = (a2 * (1 - a1) + a1) * 255; //x255 because scale of 0-255
pixeldata.Red = r2 * a2 * (1 - a1) + r1 * a1;
pixeldata.Green = g2 * a2 * (1 - a1) + g1 * a1;
pixeldata.Blue = b2 * a2 * (1 - a1) + b1 * a1;
}
}
SkipSum: //cancel excecution of adding nothing to itself
output[y, x] = pixeldata;
}
}
return(output);
}
public Form1()
{
theNullImage = EngineTools.CreateTransparent(300, 400);
im_eyes = theNullImage;
im_face = theNullImage;
im_hairBack = theNullImage;
im_hairFront = theNullImage;
im_head = theNullImage;
im_outfit = theNullImage;
im_bodyBack = theNullImage;
redraw = true; //flag used when mass deselecting to prevent ultralag
InitializeComponent();
InitializeOptions();
imbx_ImagePrimary.FunctionalMode = ImageBox.FunctionalModeOption.Minimum;
}